Rotating monitoring of commercial concrete trucks
Speed Sensor
The SPH318 series forward and reverse speed sensor is detected through the Hall principle. Simply fix two corresponding magnets on the shaft and wheel (symmetrically distributed, with one magnet's N pole facing the sensor and the other magnet's S pole facing the sensor), and fix the arrow on the detection surface of the sensor probe facing the arc of the magnet's rotation.
When the wheel or shaft rotates, it sweeps the sensor probe in the direction of the arrow with a magnet. Line 2 (blue line) outputs a forward rotation signal (low level), and Line 4 (white line) outputs a forward rotation speed pulse signal; On the contrary, Line 2 (blue line) outputs a reverse signal (high level), and Line 4 (white line) outputs a reverse speed pulse signal.
Stable performance, high reliability, and long service life
Strong anti-interference ability, good frequency characteristics, capable of continuous measurement
Small size, simple structure, contactless, low starting torque
Wide temperature range for use
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Applications
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Basic Parameters
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Dimensions
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model
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Related Products
APPLICATIONS
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Mechanical equipment speed measurement -
Motor speed detection -
Measurement of rotational speed of construction machinery
BASIC PARAMETERS
| Type | SPH318 series analog type | SPH318 series digital type |
| Supply Voltage | 5~28 V DC | 5 V DC |
| Detection distance | 5-10 mm (Installation spacing) | |
| Operation temperature | -20 ℃~+80 ℃, humidity ≤ 90% | |
| Output | Open collector output | RS485（Modbus ASCII） |
| Frequency | 10K Hz | |
| Signal status | Line 2 (blue) outputs high and low level signals, representing the direction of rotation. The initial state and forward rotation output a low level, the green light is on, and the forward rotation direction is consistent with the direction of the arrow. When reversing, it is at high level, the red light is on, and the direction of reversal is opposite to the direction of the arrow. Line 4 (white) outputs a speed pulse signal, which is a square wave signal. When equipped with two magnets, it outputs one pulse after rotating one revolution. Note: For numerical output values, please refer to the communication protocol. | |
| Protection grade | IP65 | |
| Anti vibration ability | Complex amplitude 1.5 mm 10... 50Hz (2 hours in X, Y, Z directions each) | |
| Accessory | The complete set of products includes 1 set of forward and reverse speed sensors, 2 magnets, and 1 mounting bracket. | |
BASIC PARAMETERS
DIMENSIONS
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